US 12,472,322 B2
Seal-forming structure for patient interface including textile seal member
Lemmy Nga, Sydney (AU); and Ryan Michael Kirkpatrick, Sydney (AU)
Assigned to ResMed Pty Ltd, Bella Vista (AU)
Appl. No. 17/623,522
Filed by RESMED PTY LTD, Bella Vista (AU)
PCT Filed Jun. 24, 2020, PCT No. PCT/IB2020/055968
§ 371(c)(1), (2) Date Dec. 28, 2021,
PCT Pub. No. WO2020/261139, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2019902284 (AU), filed on Jun. 28, 2019.
Prior Publication US 2022/0355055 A1, Nov. 10, 2022
Int. Cl. A61M 16/06 (2006.01)
CPC A61M 16/0616 (2014.02) [A61M 2205/0216 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A patient interface for delivering a flow of air to a patient for treatment of sleep disordered breathing, comprising:
a frame including a posterior facing surface and an anterior facing surface opposite to the posterior facing surface, wherein the frame at least partially forms a cavity pressurisable to a therapeutic pressure of at least 6 cmH2O above ambient air pressure;
a seal-forming structure constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's airways, said seal-forming structure having a hole therein such that a flow of air at said therapeutic pressure is delivered to at least an entrance to the patient's nares for treatment of sleep disordered breathing, the seal-forming structure constructed and arranged to maintain said therapeutic pressure in the cavity throughout the patient's respiratory cycle in use; and
a connection portion configured to convey pressurized air into the cavity, the connection portion extending through the anterior facing surface and the posterior facing surface;
wherein the seal-forming structure comprises a compliant portion provided to the posterior facing surface of the frame, a rigidizing element provided within the compliant portion, and a seal member adapted to sealingly engage the patient's face in use,
wherein a width of the entirety of the compliant portion is greater than a thickness of the entirety of the compliant portion, and
wherein the frame and the seal member are at least partially constructed from a textile material, and the compliant portion is constructed from a resilient material that is different than the textile material.